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> 2056 mild carb settings, new tune advice needed
RFoulds
post May 8 2023, 05:58 PM
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Now that the milder 2056 is in the car, I could use some advice on carb tune.
compression is at 8.8:1, valves are 44/38, cam is Webcam 86a.

Weber IDF 40's have
37mm venturis,
135 mains
airjets 200
F11 emulsion tube


I am told by the builder that I should step down to 34 venturis, but, have no idea where else to start. Car will go to a good tuner soon enough, just want o have a good starting point.
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Posts in this topic
RFoulds   2056 mild carb settings   May 8 2023, 05:58 PM
nditiz1   I would start with 115 mains, 28 vents, 50 idle. ...   May 8 2023, 06:22 PM
930cabman   I would start with 115 mains, 28 vents, 50 idle. ...   May 9 2023, 05:57 AM
r_towle   Agree with above Venturis are fir airflow volume a...   May 8 2023, 07:18 PM
VaccaRabite   Yeah. 37mm and 34mm vents are HUGE. They make se...   May 9 2023, 08:33 AM
sportlicherFahrer   I have a very similar engine combo in my '73 c...   May 9 2023, 08:51 AM
RFoulds   Anyone have some 32 vents to sell? Cant seem to s...   May 11 2023, 04:18 PM
sportlicherFahrer   Looks like they may be in stock at CB :confused: ...   May 11 2023, 04:32 PM
RFoulds   Looks like they may be in stock at CB :confused:...   May 11 2023, 05:31 PM
930cabman   Or Pegasus, generally has most any Weber stuff   May 11 2023, 05:28 PM
nditiz1   Pierce manifolds is my go to for all weber parts. ...   May 11 2023, 06:47 PM
rfinegan   Pierce manifolds is my go to for all weber parts....   May 12 2023, 06:27 AM
930cabman   +1 with Pierce, they always have   May 12 2023, 09:40 AM
GBX0073   Randy Congrats on getting your engine back looking...   May 14 2023, 11:15 AM
Spoke   Hijack: On my 2056, I have some popping when the ...   Sep 5 2023, 06:28 AM
rhodyguy   For starters get a set of 32mm Venturi. Go thru th...   Sep 5 2023, 06:34 AM
nditiz1   @spoke I get popping out of my carbs until fully...   Sep 5 2023, 08:15 AM
Spoke   @[url=http://www.914world.com/bbs2/index.php?show...   Sep 5 2023, 12:54 PM
Spoke   @nditiz1 Checked all adjustments and synched the...   Sep 7 2023, 09:47 PM
930cabman   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Sep 8 2023, 05:42 AM
slapshot   I'v got a 75 914 2.0 unknown piston and crank ...   Sep 8 2023, 06:06 PM


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